I know im rubbing against the grain on this one but i really dislike ergonomic and headless guitars. I just dont find them appealing. I dont like pointy horns like ibanez and jackson have. My main turn off is scale lengths shorter than 25.5" and 22 frets.

-Signature guitars. I can't play someone else's guitar, it needs to be my own for me to really bond with it(With the exception of my Razorback . Hate all you want, that's as close as I've gotten to a perfect guitar).
-Abalone inlays. I love huge, extravagant inlays, but abalone ....ing bugs me.This is perfectly fine.This is beautiful.This is ....ing horrendous.
-Mismatched headstocks. Whether it's color or shape, no flow=no me gusta. a V shaped guitar should have something like This, this, or this. NONE OF THIS .....
-The only time I've really liked the look of a quilted top is on my SG, and that's also the only time where I've been fine with neck dive.
-I don't know why, but I don't like newer-model used guitars that look like new. I was trying out a lovely PRS Africa Queen(or something like that) and despite how nice it was, it just completely turned me off that it was used. Definitely not the same for older-model guitars, I was incredibly happy that I managed to find an Ibanez Jem777VBK in near-mint condition.
-SG clones. a les paul clone like an Ibanez ART series is fine, but ESP Vipers are fugly.

That's all I can come up with for now.

EDIT: Crosses. .... that ...., get it away from my guitar. I'm not religious, and I don't want to endorse religion(or satanism, despite my love for black metal) on any of my instruments.

EDIT 2: non-smooth necks, like those mahogany necks on all of the worn gibson guitars with those irritating 'pits'. You know what I'm talking about.

"Sometimes the milk can hurt you, if you put it on your cereal before you smell the plastic container."
-Frank Zappa

I expect to gut the electronics, file and crown, and re-gauge every guitar I buy. I hate thick sticky-feeling Korean type finishes, fake abalone, flame veneer tops, and anything else to dress up a ....ty guitar. Lipstick on a pig.

Also, Basically, Schecter guitars.

Ooh, and Floyd nuts that aren't mounted right and ping the guitar out of tune when you drop the bar.

Neck shape. Almost everything can be fixed one way or another, except the neck shape. Sure you can sand it down, but if its too thin to begin with, or not shaped right, you cant do anything about it.

I can almost instantly tell if I "bond" with a neck or not.

Action can be lowered, frets can be changed, paint can be added, bridges can be swapped out, pickups can be replaced, etc etc.

I also dislike anything less then PRS (25") scale length. Gets too sloppy for my tastes.

That and those wierd body shapes as mentioned earlier.... Just don't get it. (Think bc rich too)

Not to start controversy on my third post.... but:

Huh????

1

I'm a hypocrite, I'm 100% aware of that. I own a Jem77VBK and a Razorback Rust tribute, among many other guitars. Amazing guitars and I love to play them, but they're not the kind of the kind of guitars I take out with me to a gig or something. I'm weird, it's just me being a collector vs. me being a musician. collector me gets a huge gear hard-on for a nice JEM, but musician me refuses to play anything that isn't 100% mine.

TL;DR: collect signatures, play my own .....

"Sometimes the milk can hurt you, if you put it on your cereal before you smell the plastic container."
-Frank Zappa

I also don't like signature guitars IF they are advertising the artist or the band directly. Like if i were to get the Ibanez MTM-2, i would definitely remove the "SEVEN" truss rod cover. And i wouldn't own a Stephen Carpenter LTD model because of the signature inlay. I wouldn't own any of the old Korn signature models, the K-7 ones, because of the inlay.

etc. etc. etc.

However, i would love to own a JEM or UV, or an Apex, or the MTM 2, or an ESP Stephen Carpenter sig, because they don't have any "fingerprints" from the artist or band on the guitar. The Meshuggah sig is a nice one too, because it bears no sign of being a signature guitar if you don't know about Meshuggah's guitars.

I also don't like signature guitars IF they are advertising the artist or the band directly. Like if i were to get the Ibanez MTM-2, i would definitely remove the "SEVEN" truss rod cover. And i wouldn't own a Stephen Carpenter LTD model because of the signature inlay. I wouldn't own any of the old Korn signature models, the K-7 ones, because of the inlay.

etc. etc. etc.

However, i would love to own a JEM or UV, or an Apex, or the MTM 2, or an ESP Stephen Carpenter sig, because they don't have any "fingerprints" from the artist or band on the guitar. The Meshuggah sig is a nice one too, because it bears no sign of being a signature guitar if you don't know about Meshuggah's guitars.

I'm a hypocrite, I'm 100% aware of that. I own a Jem77VBK and a Razorback Rust tribute, among many other guitars. Amazing guitars and I love to play them, but they're not the kind of the kind of guitars I take out with me to a gig or something. I'm weird, it's just me being a collector vs. me being a musician. collector me gets a huge gear hard-on for a nice JEM, but musician me refuses to play anything that isn't 100% mine.

TL;DR: collect signatures, play my own .....

haha its all good! I kinda get what you mean, you're basically catering to someone ELSES style and tastes... but as you prove, thats not always a bad thing

There was a time where Teles and singlecuts with low-output PAFs where the two types of guitars I would never see myself playing, and now they're all I play. Understandably, there are features that we would prefer to not have in our next guitar purchase or things that are objectively indications of a lemon, but I'd never rule anything out now.

"I like Christian rock. It's very positive. It's not like those real musicians who think they're so cool and hip." -George Costanza

you reminded me of how much i hate super thin necks. and i forgot to mention that i hate high action and really really really low action. i wanna feel like i'm actually pressing on the strings rather than just touching them